Spectroscopic determination of mass ablation rate in laser produced plasmas

The measurements of mass ablation rate and ablation thickness in laser produced plasmas from layered targets using a luminosity time of flight spectrometer are reported. The results show a steady state ablation in the laser intensity range of 1011–5×1012 W/cm2 of a Nd:glass laser. A mass ablation ra...

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Bibliographic Details
Published in:Journal of applied physics 1984, Vol.55 (1), p.120-124
Main Authors: GUPTA, P. D, KUMBHARE, S. R
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Plasma production and heating
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Summary:The measurements of mass ablation rate and ablation thickness in laser produced plasmas from layered targets using a luminosity time of flight spectrometer are reported. The results show a steady state ablation in the laser intensity range of 1011–5×1012 W/cm2 of a Nd:glass laser. A mass ablation rate of 2×104 g/cm2/sec is observed for aluminum plasma at the laser intensity of 5×1011 W/cm2 which is consistent with the estimate obtained using a self-regulating model for plasma heating. This technique offers a simple and direct method for measuring the ablation parameters.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.332875